Finding the Fourth Proportional to 391,140,587,257.20, 586,710,880,885.80 and 372,544,403,785.20
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Solution
The fourth proportional to 391,140,587,257.20, 586,710,880,885.80 and 372,544,403,785.20 is: 558,816,605,677.80
Step by Step Solution
- Step 1: Write the proportion equation
391,140,587,257.20 : 586,710,880,885.80 = 372,544,403,785.20 : x - Step 2: Convert to fraction form
391,140,587,257.20/586,710,880,885.80 = 372,544,403,785.20/x - Step 3: Cross multiply
391,140,587,257.20x = 586,710,880,885.80 × 372,544,403,785.20 - Step 4: Simplify right side
391,140,587,257.20x = 218,575,855,313,889,886,470,144 - Step 5: Solve for x
x = 218,575,855,313,889,886,470,144/391,140,587,257.20 - Step 6: Final answer
x = 558,816,605,677.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.